1240442012 has 12 divisors (see below), whose sum is σ = 2191061880. Its totient is φ = 614424336.

The previous prime is 1240442011. The next prime is 1240442059. The reversal of 1240442012 is 2102440421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240442011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1448687 + ... + 1449542.

It is an arithmetic number, because the mean of its divisors is an integer number (182588490).

Almost surely, 2^1240442012 is an apocalyptic number.

It is an amenable number.

1240442012 is a deficient number, since it is larger than the sum of its proper divisors (950619868).

1240442012 is a wasteful number, since it uses less digits than its factorization.

1240442012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898340 (or 2898338 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1240442012 is about 35219.9093127736. The cubic root of 1240442012 is about 1074.4647090170.

Adding to 1240442012 its reverse (2102440421), we get a palindrome (3342882433).

The spelling of 1240442012 in words is "one billion, two hundred forty million, four hundred forty-two thousand, twelve".